diff options
| author | Dave Airlie <airlied@redhat.com> | 2016-11-24 03:10:52 +0000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2016-11-24 18:06:05 +1000 |
| commit | bb8ac183404541ca8dee31563709d5aca8de0e73 (patch) | |
| tree | 7768d6c45af9ed7d4a504bdf1d5f27202719538f | |
| parent | 116fed80ff1e65802ecf0244a10a68b83e979258 (diff) | |
radv: fix texel fetch offset with 2d arrays.
The code didn't limit the offsets to the number supplied, so
if we expected 3 but only got 2 we were accessing undefined memory.
This fixes random failures in:
dEQP-VK.glsl.texture_functions.texelfetchoffset.sampler2darray_*
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Cc: "13.0" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
| -rw-r--r-- | src/amd/common/ac_nir_to_llvm.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c index 06645beb0f..76d6d88788 100644 --- a/src/amd/common/ac_nir_to_llvm.c +++ b/src/amd/common/ac_nir_to_llvm.c @@ -3601,12 +3601,13 @@ static void visit_tex(struct nir_to_llvm_context *ctx, nir_tex_instr *instr) if (offsets && instr->op == nir_texop_txf) { nir_const_value *const_offset = nir_src_as_const_value(instr->src[const_src].src); - + int num_offsets = instr->src[const_src].src.ssa->num_components; assert(const_offset); - if (instr->coord_components > 2) + num_offsets = MIN2(num_offsets, instr->coord_components); + if (num_offsets > 2) address[2] = LLVMBuildAdd(ctx->builder, address[2], LLVMConstInt(ctx->i32, const_offset->i32[2], false), ""); - if (instr->coord_components > 1) + if (num_offsets > 1) address[1] = LLVMBuildAdd(ctx->builder, address[1], LLVMConstInt(ctx->i32, const_offset->i32[1], false), ""); address[0] = LLVMBuildAdd(ctx->builder, |